Ok so digging up an old thread once again. I just installed a 5 button from an 07' NA car into my 05'GTP and just plugged it right in. I didn't get the compass module because I actually forgot about it. I have had issues for the past 18 months where the temp did not display correctly (always read 99,129,149,176°) and once in a blue moon it would display correctly for a few minutes. Since the 3 button doesn't display temp (only in HUD). I suspected wiring after changing the sensor. So I put the 5 button and bam it displays correctly on both the HUD and the bottom right of the DIC. Funny thing is Torque Pro always displayed correctly. The only issue is that since it's an 07' the car was equipped with TPMS sensors and says "Service Tire Pressure System" on start up. Obviously when I scroll through the display it shows the tires but has dashes next to them. Well where is the receiver for the TPMS? Also should I just try to get an 06' 5 button display instead. There were 2 06's and an 07' I figured the 07' would be closer to my mileage but it's actually got about 40K miles more. Everything seems to work fine except the tire system and the compass. What I am curious about is since I have an 05' would I still get the "Check tire pressure" error since the 05 uses the ABS to figure out if there is a tire low.
Jeff